Answer:
Vertical stretch by a factor of 6
Step-by-step explanation:
Multiplying the function value by a constant moves its y-coordinate farther away from the x-axis by that factor. It causes a vertical stretch. Here, ...
the vertical stretch factor is 6
X = 2
y = -9
16 - negative 18 = -2
1 + 1 + 1 + 2 = 5
5 x 9 = 45
Therefore, the total number of km is 45.
Final Answer: 
Steps/Reasons/Explanation:
Question: Solve
.
<u>Step 1</u>: Collect like terms.

<u>Step 2</u>: Simplify.

~I hope I helped you :)~